mirror of
https://github.com/apache/nuttx.git
synced 2026-06-07 17:33:08 +08:00
Add MTD interface; add M25P64/128 driver
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2157 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
@@ -97,7 +97,8 @@
|
||||
#define _BIOCVALID(c) (_IOC_TYPE(c)==_BIOCBASE)
|
||||
#define _BIOC(nr) _IOC(_BIOCBASE,nr)
|
||||
|
||||
#define BIOC_XIPBASE _BIOC(0x0001) /* IN: None
|
||||
#define BIOC_XIPBASE _BIOC(0x0001) /* IN: Pointer to pointer to void in
|
||||
* which to received the XIP base.
|
||||
* OUT: If media is directly acccesible,
|
||||
* return (void*) base address
|
||||
* of device memory */
|
||||
@@ -108,10 +109,12 @@
|
||||
#define _MTDIOC(nr) _IOC(_MTDIOCBASE,nr)
|
||||
|
||||
#define MTDIOC_GEOMETRY _MTDIOC(0x0001) /* IN: Pointer to write-able struct
|
||||
* mtd_geometry_s (see mtd.h)
|
||||
* mtd_geometry_s in which to receive
|
||||
* receive geometry data (see mtd.h)
|
||||
* OUT: Geometry structure is populated
|
||||
* with data for the MTD */
|
||||
#define MTDIOC_XIPBASE _MTDIOC(0x0002) /* IN: None
|
||||
#define MTDIOC_XIPBASE _MTDIOC(0x0002) /* IN: Pointer to pointer to void in
|
||||
* which to received the XIP base.
|
||||
* OUT: If media is directly acccesible,
|
||||
* return (void*) base address
|
||||
* of device memory */
|
||||
|
||||
@@ -0,0 +1,128 @@
|
||||
/****************************************************************************
|
||||
* include/nuttx/mtd.h
|
||||
* Memory Technology Device (MTD) interface
|
||||
*
|
||||
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __INCLUDE_NUTTX_MTD_H
|
||||
#define __INCLUDE_NUTTX_MTD_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-Processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Macros to hide implementation */
|
||||
|
||||
#define MTD_ERASE(d,s,n) ((d)->erase ? (d)->erase(d,s,n) : (-ENOSYS))
|
||||
#define MTD_READ(d,s,n,b) ((d)->read ? (d)->read(d,s,n,b) : (-ENOSYS))
|
||||
#define MTD_WRITE(d,s,n,b) ((d)->write ? (d)->write(d,s,n,b) : (-ENOSYS))
|
||||
#define MTD_IOCTL(d,c,a) ((d)->ioctl ? (d)->ioctl(d,c,a) : (-ENOSYS))
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/* The following defines the geometry for the device. It treats the device
|
||||
* as though it where just an array of fixed size blocks. That is most likely
|
||||
* not true, but the client will expect the device logic to do whatever is
|
||||
* necessary to make it appear so.
|
||||
*/
|
||||
|
||||
struct mtd_geometry_s
|
||||
{
|
||||
uint16 blocksize; /* Size of one read/write block */
|
||||
uint16 erasesize; /* Size of one erase blocks -- must be a multiple
|
||||
* of blocksize. */
|
||||
size_t neraseblocks; /* Number of erase blocks */
|
||||
};
|
||||
|
||||
/* This structure defines the interface to a simple memory technology device.
|
||||
* It will likely need to be extended in the future to support more complex
|
||||
* devices.
|
||||
*/
|
||||
|
||||
struct mtd_dev_s
|
||||
{
|
||||
/* The following methods operate on the MTD: */
|
||||
|
||||
/* Erase the specified erase blocks */
|
||||
|
||||
int (*erase)(FAR struct mtd_dev_s *dev, off_t startblock, size_t nblocks);
|
||||
|
||||
/* Read/write from the specified read/write blocks */
|
||||
|
||||
int (*read)(FAR struct mtd_dev_s *dev, off_t startblock, size_t nblocks,
|
||||
FAR ubyte *buffer);
|
||||
int (*write)(FAR struct mtd_dev_s *dev, off_t startblock, size_t nblocks,
|
||||
FAR const ubyte *buffer);
|
||||
|
||||
/* Support other, less frequently used commands:
|
||||
* - MTDIOC_GEOMETRY: Get MTD geometry
|
||||
* - MTDIOC_XIPBASE: Convert block to physical address for eXecute-In-Place
|
||||
* (see include/nuttx/ioctl.h)
|
||||
*/
|
||||
|
||||
int (*ioctl)(FAR struct mtd_dev_s *dev, int cmd, unsigned long arg);
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __INCLUDE_NUTTX_MTD_H */
|
||||
+4
-2
@@ -102,7 +102,8 @@
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#define SPI_SETMODE(d,m) ((d)->ops->setmode ? (d)->ops->setmode(d,m) : (void))
|
||||
#define SPI_SETMODE(d,m) \
|
||||
do { if ((d)->ops->setmode) (d)->ops->setmode(d,m); } while (0)
|
||||
|
||||
/****************************************************************************
|
||||
* Name: SPI_SETBITS
|
||||
@@ -119,7 +120,8 @@
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#define SPI_SETBITS(d,b) ((d)->ops->setbits ? (d)->ops->setbits(d,b) : (void))
|
||||
#define SPI_SETBITS(d,b) \
|
||||
do { if ((d)->ops->setbits) (d)->ops->setmode(d,b); } while (0)
|
||||
|
||||
/****************************************************************************
|
||||
* Name: SPI_STATUS
|
||||
|
||||
Reference in New Issue
Block a user